Alert archive / Georgia / Flash Flood Warnings in 2013

Flash Flood Warning 38, NWS Atlanta, GA

July 3, 20137 counties in Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 3, 2013, 5:31 PM EDT for 7 counties in Georgia. It was in force for 6 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 3, 2013, 5:31 PM EDT (21:31 UTC)
Expired: Jul 3, 2013, 11:30 PM EDT
In force: 6 hr
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Flood severity: None

Counties Banks County, GA, Dawson County, GA, Hall County, GA, Lumpkin County, GA, Towns County, GA, Union County, GA, White County, GA

The radar

The Greer radar (KGSP), 131 km from the middle of the area, began a volume at 21:32 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jul 3, 7:12 PM EDT	FLASH FLOOD	Young Harris, GA	EMERGENCY MANAGER REPORTS 4 COUNTY ROADS ARE CLOSED. 2 WERE DUE TO CULVERT WASHOUTS AND 2 ARE COMPLETELY IMPASSABLE. THE ROADS WERE SETTLEMENT...WINCHESTER CREEK...KIRBY AND CRISP ROADS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.5 hours before the alert went out and 158 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1032 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 511 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

554 
WGUS52 KFFC 032131
FFWFFC
GAC011-085-139-187-281-291-311-040330-
/O.NEW.KFFC.FF.W.0038.130703T2131Z-130704T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
531 PM EDT WED JUL 3 2013

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN DAWSON COUNTY IN NORTH CENTRAL GEORGIA
  NORTHERN HALL COUNTY IN NORTH CENTRAL GEORGIA
  EASTERN LUMPKIN COUNTY IN NORTH CENTRAL GEORGIA
  EASTERN UNION COUNTY IN NORTH CENTRAL GEORGIA
  BANKS COUNTY IN NORTHEAST GEORGIA
  TOWNS COUNTY IN NORTHEAST GEORGIA
  WHITE COUNTY IN NORTHEAST GEORGIA

* UNTIL 1130 PM EDT

* AT 525 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM HEAVY RAIN THAT HAS FALLEN OVER THE WARNED
  AREA. WIDESPREAD AMOUNTS BETWEEN 2 AND 4 INCHES OF RAIN HAVE
  FALLEN...WITH SOME AREAS RECEIVING UP TO 6 INCHES ALREADY. AN
  ADDITIONAL 1 TO 3 INCHES EXPECTED THROUGH THE EVENING HOURS. THIS
  IS A DANGEROUS SITUATION IN THE NORTH GEORGIA MOUNTAINS. RESIDENTS 
  SHOULD TAKE APPROPRIATE ACTIONS NOW TO SAVE LIFE AND PROPERTY.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO UNICOI
  STATE PARK...HIAWASSEE AND YOUNG HARRIS. EXPECT CONTINUED RAPID
  RISES ESPECIALLY ALONG CREEKS AND RIVERS IN THE HIGHER TERRAIN OF
  THE MOUNTAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY...THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

IN HILLY TERRAIN THERE ARE LOW WATER CROSSINGS WHICH ARE POTENTIALLY
DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED
ROADS...FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY
FLOWING WATER TO CARRY VEHICLES AWAY.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.

&&

LAT...LON 3499 8354 3495 8354 3488 8365 3480 8367
      3475 8362 3465 8365 3454 8361 3450 8365
      3444 8362 3450 8353 3446 8339 3433 8339
      3426 8333 3420 8338 3426 8348 3425 8357
      3430 8362 3434 8408 3492 8392 3499 8395

$$

2 follow-up statements

672 
WGUS72 KFFC 040005
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
805 PM EDT WED JUL 3 2013

GAC011-085-139-187-281-291-311-040330-
/O.CON.KFFC.FF.W.0038.000000T0000Z-130704T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WHITE GA-UNION GA-TOWNS GA-LUMPKIN GA-BANKS GA-DAWSON GA-HALL GA-
805 PM EDT WED JUL 3 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT FOR
NORTHERN HALL...SOUTHEASTERN DAWSON...BANKS...EASTERN LUMPKIN...
TOWNS...EASTERN UNION AND WHITE COUNTIES...

AT 757 PM EDT...WIDESPREAD AMOUNTS OF 2 TO 4 INCHES OF RAIN HAVE 
FALLEN ACROSS NORTHEAST GEORGIA SINCE THIS AFTERNOON. SOME AREAS 
HAVE RECEIVED AS MUCH AS 6 INCHES. WHILE THE RAIN HAS TAPERED OFF 
FOR THE TIME BEING...ADDITIONAL ROUNDS OF RAIN CAN BE EXPECTED 
THROUGH THE LATE EVENING AND OVERNIGHT HOURS. SEVERAL ROADS ARE 
CLOSED ESPECIALLY IN THE NORTH GEORGIA MOUNTAINS. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO UNICOI STATE 
PARK...HELEN...CLEVELAND...HIAWASSEE AND YOUNG HARRIS. WHILE WATER 
MAY BRIEFLY RECEDE...AS THE RAIN PICKS UP AGAIN RESIDENTS CAN EXPECT 
CONTINUED RAPID RISES ESPECIALLY ALONG CREEKS AND RIVERS IN THE 
HIGHER TERRAIN OF THE MOUNTAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS AND COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

IN HILLY TERRAIN THERE ARE LOW WATER CROSSINGS WHICH ARE POTENTIALLY
DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED
ROADS...FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY
FLOWING WATER TO CARRY VEHICLES AWAY.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.

&&

LAT...LON 3499 8354 3495 8354 3488 8365 3480 8367
      3475 8362 3465 8365 3454 8361 3450 8365
      3444 8362 3450 8353 3446 8339 3433 8339
      3426 8333 3420 8338 3426 8348 3425 8357
      3430 8362 3434 8408 3492 8392 3499 8395

$$

589 
WGUS72 KFFC 040323
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1123 PM EDT WED JUL 3 2013

GAC011-085-139-187-281-291-311-040331-
/O.EXP.KFFC.FF.W.0038.000000T0000Z-130704T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WHITE GA-UNION GA-TOWNS GA-LUMPKIN GA-BANKS GA-DAWSON GA-HALL GA-
1123 PM EDT WED JUL 3 2013

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1130 PM EDT FOR NORTHERN
HALL...SOUTHEASTERN DAWSON...BANKS...EASTERN LUMPKIN...TOWNS...
EASTERN UNION AND WHITE COUNTIES...

ANYWHERE FROM 3 TO 6 INCHES OF RAIN HAVE FALLEN ACROSS NORTHEAST 
GEORGIA. WHILE THE RAIN HAS SUBSIDED FOR NOW...ADDITIONAL RAINFALL 
IS EXPECTED OVERNIGHT. RESIDENTS SHOULD STAY TUNED TO LATEST WEATHER 
INFORMATION IN CASE ADDITIONAL WARNINGS ARE NECESSARY.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.

LAT...LON 3499 8354 3495 8354 3488 8365 3480 8367
      3475 8362 3465 8365 3454 8361 3450 8365
      3444 8362 3450 8353 3446 8339 3433 8339
      3426 8333 3420 8338 3426 8348 3425 8357
      3430 8362 3434 8408 3492 8392 3499 8395

$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 2, 10:30 PM EDT	Special Weather Statement	FFC	Towns	45 min
Jul 2, 10:42 PM EDT	River Flood Warning	FFC	Forsyth, Fulton	63 hr
Jul 2, 11:22 PM EDT	Special Weather Statement	FFC	Murray, Whitfield	68 min
Jul 3, 9:51 AM EDT	Special Weather Statement	FFC	Haralson, Polk	54 min
Jul 3, 10:15 AM EDT	Flash Flood Warning	FFC	Haralson	2 hr
Jul 3, 12:00 PM EDT	Flash Flood Warning	FFC	Coweta, Heard, Troup	3 hr
Jul 3, 12:10 PM EDT	Flash Flood Warning	FFC	Haralson	6 hr
Jul 3, 1:24 PM EDT	Flash Flood Warning	FFC	Carroll, Cherokee, Cobb, Douglas, Fulton	6 hr
Jul 3, 1:46 PM EDT	Special Weather Statement	FFC	Butts, Monroe	29 min
Jul 3, 2:16 PM EDT	Flash Flood Warning	FFC	Cherokee, Dawson, Fannin, Forsyth, Fulton, Gilmer and 3 more	6 hr
Jul 3, 2:17 PM EDT	River Flood Warning	FFC	Forsyth	15 hr
Jul 3, 2:28 PM EDT	River Flood Warning	FFC	Cobb	6 hr
Jul 3, 2:55 PM EDT	Flash Flood Warning	FFC	Coweta, Heard, Meriwether, Troup	6 hr
Jul 3, 4:12 PM EDT	Special Weather Statement	FFC	Telfair	33 min
Jul 3, 4:28 PM EDT	Flash Flood Warning	FFC	Wilkes	6 hr
Jul 3, 4:31 PM EDT	Flash Flood Warning	FFC	Baldwin, Wilkinson	6 hr

Nearby

Flash Flood Warnings in Georgia, 2013 Every flash flood warning in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.